Plastic Insulating Bushing, 4"

Plastic Insulating Bushing, 4"

The 75240B Plastic Insulating Bushing (4") is a durable electrical insulation component designed to safely isolate wiring or conductive hardware from grounded metal surfaces. Built from tough, non-conductive plastic, this insulating bushing helps prevent electrical shorts, reduce wear on cables passing through metal panels, and provide clean, protected routing for wiring installations. Its 4-inch size makes it well-suited for larger openings or heavier-duty applications where proper insulation and cable protection matter. Simple in design but critical in function, it’s one of those small components that quietly keeps everything working the way it should—no sparks, no surprises.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 75240B
• Product Type: Plastic insulating bushing
• Material: Non-conductive industrial-grade plastic
• Diameter / Size: 4 inches
• Function: Provides electrical insulation between wiring and metal surfaces
• Protection: Helps prevent abrasion, shorts, and wire damage
• Installation: Press-fit or insert-style installation depending on application
• Durability: Resistant to cracking, corrosion, and typical shop environments
• Application: Electrical panels, equipment housings, and cable pass-through points

Ideal For

• Protecting electrical wiring passing through metal panels or enclosures
• Preventing electrical shorts in equipment and electrical assemblies
• Routing larger cables safely through openings or bulkheads
• Electrical and mechanical setups where proper insulation and cable protection are critical
• Situations where a simple plastic bushing prevents a very complicated electrical problem later.